Mercer Mayer Books

Just for You (Little Critter)

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This silly and sweet picture book about the mayhem that results from trying to help mom is a perfect gift any time of year! Mercer Mayer’s Little Critter is trying his best to be a help to...

Happy Easter, Little Critter

By Mercer Mayer

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Celebrate Easter with this adorable Little Critter board book!It’s Easter morning, and Little Critter is ready to find some Easter goodies with his little sister! After church, they dye some...

Our Friend Sam First Readers Skills and Practice

By Mercer Mayer

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Little Critter s the Best Present

By Mercer Mayer

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Just a Little Homework

By Mercer Mayer, Gina Mayer

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Just a Secret

By Mercer Mayer, Gina Mayer

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Little Critter Sleeps Over Turtleback School Library Binding Edition Mercer Mayer s Little Critter Step into Reading Step 2

By Mercer Mayer

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Just a Little Too Little

By Mercer Mayer, BookSource Staff

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.